Recent research on discourse relations has found that they are cued not only
by discourse markers (DMs) but also by other textual signals and that signaling
information is indicative of genres. While several corpora exist with discourse
relation signaling information such as the Penn Discourse Treebank (PDTB,
Prasad et al. 2008) and the Rhetorical Structure Theory Signalling Corpus
(RST-SC, Das and Taboada 2018), they both annotate the Wall Street Journal
(WSJ) section of the Penn Treebank (PTB, Marcus et al. 1993), which is limited
to the news domain. Thus, this paper adapts the signal identification and
anchoring scheme (Liu and Zeldes, 2019) to three more genres, examines the
distribution of signaling devices across relations and genres, and provides a
taxonomy of indicative signals found in this dataset.Comment: 10 pages. In Proceedings of 7th Workshop on Discourse Relation
Parsing and Treebanking (DISRPT) at NAACL-HLT 2019, Minneapolis, M